Improvement in lubricators



1:. MATHER.'

lmprovement'in Lubricators. 110.114,317. Pmmedmaymm.

UNITED STATES PATENT OEEICEc COTTON MATHEIt, OF STEUBENVILLE, OHIO.

IMPROVEMENT IN LUBRICATORS.

Specification forming part of Letters Patent No. 114,317,dated May 2,1871.

To all whom it may concern Be it known that I, COTTON MATHER, ofSteubenville, in the county of Jefferson and State of Ohio, haveinvented a new and useful Improvement in Lubrieators 5 and I do herebydeclare that the following is a full, clear, and exact descriptionthereof, which will enable others skilled in the art to make and use thesame, referencebein g had to the accompanying drawing, forming part ofthis specification.

This invention relates to a new and useful improvement in a device forlubricating the shafts or bea-rin gs of loose pulleys and for similarpurposes, and consists in so constructing the oiler or lubricator thatthe oil is forced from the reservoir by the centrifugal force operatingupon a solid substance of greater weight than the oil, and thus forcedthrough a tube to the bearing in opposition to centrifugal force.

The accompanying drawing represents a central longitudinal section ofthe luhricator.

Similar letters of reference indicate corresponding parts.

A is the reservoir for the oil, which is conined between the flangedheads B and C with packing in the joints, as seen in the drawing. D is acentral tube, with a screw-thread, E, on one end for attaching it to theloose pulley. On the other end of the tube there is a screw-thread forconfining the head B, which latter screws onto the tube.

F is alittle screw, which stops the end of the tube. G is a weight, oflead, which works freely on the tube with the packing-disk H, abovewhich latter fits the reservoir. I is an orifice in the tube, throughwhich the oil is forced from the reservoir into the tube.

It will be understood that the lubricator is screwed into the hub of aloose pulley or wheel and revolves therewith.

4The oil which enters the tube is discharged at J onto the shaft.

As the pulley revolves, the centrifugal force will operate upon theweight G with greater effect than it will upon the oil.

K represents the oil.

The packing-disk H prevents the oil from getting below the weight, andthe tendency of the weight is to force or drive the oil before it andforce it into the tube. This is done with a force proportioned to thespeed.

The quantity of oil discharged is regulated by the screw F, which, byturning down, is made to close, or partly close, the orifice I.

It will he seen that there must be a constant pressure exerted on theoil in opposition to centrifugal force by the weight, which will forcethe oil through the tube and keep the pulley constantly lubricated.

I do not confine myself strictly to loose pnlleys in the application ofmy improvemen t, but design it for use in all situations where it can beapplied for overcolnin g centrifugal force exerted on oil by exerting iton a weight.

There may he an orice in the head B, closed by a tight-fittingthumb-screw, through which the reservoir may be illed, so that it willnot be necessary to remove the head in suppl yin g the reservoir withoil.- Y

Having thus described my invention, I claim as new and desire to secu-reby Letters Patent- The chamber A, tube D, and weighted centrifugalpiston G H, combined and applied as and for the purpose specified.

COTTON MATHER.

Witnesses:

J AMES MCLEE, D. W. GnEsLER.

